Is there a MetaWeblog API tool to export from BlogEngine to another platform?

I am currently looking for a utility that uses the MetaWeblog API to export from a BlogEngine hosted blog to a blog hosted on another platform that also uses the MetaWeblog API. The other platform I'm currently looking at is Squarespace, but they don't support
uploading a BlogML file; wish they did.

For exporting, on the Settings tab in the control panel, at the very bottom is an "Export" button, which exports in BlogML format.

Yes, I see that, but I pointed out that Squarespace does not support uploading a BlogML file. I am trying to find out if there is a tool somewhere that uses the MetaWeblog API to migrate posts from one blog to another. Do you know of any?